App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 827 · 40 questions

Developer's tip (Design for everyone): Our rule: text is at least 16 px; every icon has a text label for screen readers. Add captions to videos; never use colour as the only clue. Big touch targets and strong contrast help everyone.

1. 1.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
2. 2.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
3. 3.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
5. 5.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
6. 6.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
8. 8.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) text that can grow (d) fast-flashing lights
9. 9.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
11. 11.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
12. 12.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) labels on every icon (d) icons with no labels
13. 13.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
14. 14.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
15. 15.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
17. 17.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
18. 18.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Body text: 20 px
    Label: 9 px (a) Title (b) Label (c) Body text
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Footer: 14 px
    Caption: 20 px
    Body text: 16 px (a) Body text (b) Footer (c) Menu (d) Caption
21. 21.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Body text: 9 px
    Caption: 28 px (a) Caption (b) Body text (c) Footer
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Title: 22 px
    Footer: 21 px
    Caption: 17 px
    Hint: 17 px (a) Title (b) Body text (c) Footer (d) Caption
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Body text: 14 px
    Footer: 18 px
    Caption: 11 px
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Body text: 11 px
    Footer: 12 px
    Hint: 19 px
26. 26.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) labels on every icon (d) captions on videos
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Caption: 21 px
    Footer: 17 px
    Menu: 9 px
    Label: 25 px (a) Menu (b) Caption (c) Footer (d) Body text
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Caption: 14 px
    Menu: 11 px
    Title: 13 px
    Body text: 17 px
29. 29.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) icons with no labels (d) text that can grow
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Title: 22 px
    Menu: 20 px
    Footer: 12 px
    Hint: 19 px (a) Footer (b) Title (c) Body text (d) Menu
32. 32.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
33. 33.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Body text: 18 px
    Caption: 19 px
    Title: 12 px (a) Body text (b) Title (c) Caption (d) Hint
35. 35.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
36. 36.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) labels on every icon (d) big touch targets
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Hint: 17 px
    Body text: 12 px (a) Hint (b) Label (c) Body text
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Hint: 12 px
    Menu: 22 px
40. 40.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) fast-flashing lights (d) tiny tap areas

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